Multiple-drill press.



'No. 734,082. PATENTED JULY 21, 1903.

F. J. NUTTING,

MULTIPLE DRILL PRESS.

APPLICATION nun JAN. 13, 1903.

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PATENTED JULY 21, 1903.

I. J. NUTTING.

MULTIPLE DRILL PRESS.

APPLICATION FILED JAN. 13, 1903.

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iatented. July 21, 1963.

PATENT OFFICE.

FREDERICK J. NUTTING, on DAYTON, OHIO.

MULTIPLE-DRILL PRESS.

siancrnzontrxon formingpart of Letters Patent No. 734,082, dated July 21, 1903.

' i Application filed January 13,1903. Serial No. 138,861. (No model.

To a, whom it may concern:

Be it known that I, FREDERICK J N UTTING,

a citizen of the United States,residingat- Day-- ton, in the county of Montgomery'and State of Ohio, have inventedv certain new and useful Improvements in Multiple-Drill Presses; and I do declare the following to be a full;

clear, and exact description of the invention,

such as will enable others skilled in the 'art,

press and possesses the novel features hereinafter described and claimed.

The object of the'invention is to provide a machine of the above type for doing special work-namely, for dril'lingor tapping five or more openings from three different directions, the tool-holding spindles being mounted in vertical and horizontal planes.

Preceding a detail description of the invention, reference is made to the accompanying drawings, of which- I Figure 1 isa front elevation of the machine, showing a casting in position. therein to'be tapped or drilled from three directions. Fig.

2 is a rear elevation of the machine with the casting removed. Fig. 3 is an end elevation looking in the direction of the arrow, as shown in Fig. 1. Fig. 4 is a vertical sectional elevation on the. line a a: of Fig. 2. A portion of the castingto be tapped or-drilled is shown in this view. Fig. 5 is a top plan view of the machine, omitting the lower parts. Fig; 6 is a horizontal sectional view on the line y y of Fig. 2. Fig. 7 is an enlarged detail in perspective of one of the cross-heads, showing the means for raising and lowering the vertical spindles. Fig. Sis an enlarged sectional detail on the line z z of Fig. 1, showing the means for adjusting the heads which support the horizontalspindles. Fig. 9 is a front elevation, partly in section and parts being broken .away, illustrating a portion of the mechanism shown in Fig. viewed in the direction of the arrow, as shown in said figure. Fig. 10 is an enlarged detail in perspective,

g showing the'lower member of the connectingrod through which vertical movement is imthe side frames 2 2.

part-ed to the vertical spindles in adjusting lhesame to the work. Fig. 11 is across-section through one ofthe cross-heads supporting the vertical spindles. Fig. 12 is a detail showing the mounting of the horizontal spin 'dles in the sliding heads. Fig. 13 is a detail of adjusting devices for elevating or lowering the cross-rail.

In the following detail description of the invention similar reference characters indicate corresponding parts throughout the several views of the drawings. 4

The stationary parts of the frame comprise a base 1 and two upright sides 2 2, which are bolted to said base and are braced by upper tie-rods 2 2".

. 3 designates a cross-rail arranged across and adjustable vertically upon the side frames 22 by means of adjusting-screws 4 4, which penetrate vertical openings 5 5 in the said side frames and pass through screw-threaded bosses 6, which project from the rear side of said cross-rail and lie within the spaces 5 5. r The screws 44are operated vertically through bevel-gears 49 49, two of which are on a horizontal shaft 50, journaled in brackets 52 on Shaft is rotated by hand or power and has two hand-wheels 51. The cross-rail3 is clamped to the side frames 2' 2 by plates 7, which are bolted .to said rail, as shown in Figs. 2 and 5, and said railis thus maintained in a fixed position after suitable adjustment has been given the same.

8, 9, and 10 design'ateaseries of vertical spindies which may be employed for drilling or tapping. As these spindles are shown in Figs.

1, 3, and 4 of the drawings they each contain' a tap 108 and a reamer 109 but it is obvious that drills may be employed instead of taps. The central spindle 9 is stationary as to horizontal movement, while the two outer spindles 8 and 10are adjustable horizontally by means of screws 11, which are journaled in bearings 12 12 on the cross-rail 3 and engage with screw-threaded brackets 13 13, which are fixed to sliding cross-heads 14 14, upon which the spindles 8 and 10 are supported. (See Fig. 2.)

Spindles 8, 9, and 10 are jour-naled in vertically-slidable heads 15, which move in Ways 16 in the cross-heads 14, 14, and 14. As before stated, the cross-heads 14 14 slide horizon tally on the cross-rail 3 and are secured in positions after such adjustment by means of gibs l7 and 18, the latter of which takes up the vertical wear between the rail 3 and the crossheads 14 14, as shown in Figs. 3, 4, and 7. Gibs l7 tighten said cross-heads to the rail 3 after the horizontal adjustment. The centralcross-head 14, not being adjustable horizontally, is not provided with the adjusting devices 11 and 13. The spindles 8, 9, and are prevented from longitudinal movement independent of the heads 15 by means of enlarged ends 15 and collars 15", which lie above and below heads 15. The vertical feed of the spindles in their work is obtained through rock-shaft 19, toothed sectors 20, and racks 21 on the rear of the sliding heads 15. (See Figs. 2 and 4.) The rock shaft 19 is mounted in brackets 22 22*on the cross-heads 14, 14, and 14. The brackets 13 13, hereinbefore referred to, are extensions of the brackets 22. Movement is imparted to the rock shaft 19 through a rocker-arm 23, one end of which is rigidly secured to said shaft and the other end of which is pivotally connected to an adjustable conuecting-rod consisting of a forked member 24, a right and left hand screw 25, provided with a hand-wheel 26, and a lower socket member 27,into which the screw 25 penetrates. The said member 27 is pivotally connected to a link 28. 29 is another link by which link 28 is connected to one arm of a bell-crank 30. The other arm, 30, of said bell-crank is linked to a connecting-rod 31, which, together with other devices hereinafter described, is instrumental in regulating the feed of the lower or horizontal spindles 69, hereinafter more fully described.

Returning to the vertical spindles 8, 9, and 10, their driving mechanism remains to be described, as follows: Near the top of said spindles above the journal-bearings 33, as shown in Fig. 1, there are spur-wheels 34, through which said spindles slide by means of splined connections. These spur-wheels 34 mesh with idlers 35 on studs 36. On said studs there are also Worm-wheels 37, which engage worms 38 on shaft 39. The spurgears 35 on worm-gears 37 are bolted together, (see Fig. 4,) so that they revolve in unison. 4O designates keepers (see Figs. 1 and 5) which are held by nuts on studs 36 and prevent the spur-wheels 34 from rising with-the spindles 8, 9, and 10. Shaft 39 is journaled in brackets 40 and end bracket 40, brackets 40 being on the cross heads 14 14 and bracket 40 being on the cross-rail 3. This shaft is driven through miter-gears 4tfrom upright shaft 42, the latter having bearings 43 on the rear side of the cross-rail 3 and in a lower bracket 44, bolted to one of the side frames 2. In order that the worm 38 on the cross-head which carries the spindle 10 may move with said cross-head in its horizontal adjustment, I have provided a keeper 40 (see Fig. 2,) which is bolted at one end to bracket 40 and hooks onto the end of the worm 38, as shown in Figs. 2 and 5. The miter-gear 41 on the upper end of shaft 42 is splined to said shaft, so that the cross-rail 3 may have the necessary vertical movement and will carry said miter-gear 41 with itin such movement. Movement is imparted to shaft 42 through miter-gears 45, one of which is on the main driving-shaft 46, journaled in bearings 47 47, secured to the side frames 2 2 and an outer bearing48. The main driving-shaft 46 is driven through belt-pulley 46. On the upright shaft 42 near its lower end is a worm 53, that meshes with a worm-Wheel 54, connected to a shaft 55, having hearings in a boss 56 on' one of the side frames 2 2. On shaft there is a pinion 57, meshing with a spur-gear 58 on shaft 59, the latter shaft being supported in a boss 60 on frame 2. (See Figs. 2, 4, and 5.) On shaft 59 there is a cam-disk 61, having suitable cam-groove 62 for the reception of a roller 63, which is mounted on lever 64, pivoted at its outer end in bracket 65, which in turn is supported on the side frame 2. The free end of lever 64 is bifurcated to straddle the member 27 of the rock-shaft connections hereinbefore referred t0. bifurcated end of the lever 64 and through a sliding block 67, which fits in an opening 68 in said member 27. (See Figs. 4 and 10.) The block 67 allows the lever 64 to have the necessary are movement in imparting the vertical movement to the connecting-rod,composed of the members 24, 25, and 27, as hereiubefore set forth. The horizontal spindles 69, hereinbefore briefly referred to, are journaled in slidable heads 32 and stationary heads 70, the latter being bolted to the base 1 and the former--to wit, the heads 32being movable in V-ways 71 in the base 1, as shown in Figs. 4 and 8. The heads 32 adjust the spindles to and from the work, and the said spindles are prevented from moving independently of said heads by means of collars 72 and heads 73, the latter being practically part of the spindles-for example, enlarged ends of said spindles. (See Fig. 12.) The said spindles 69 have sliding movements in the stationary heads 70 and carry pinions 74, which are splined to said spindles.

The pinions 74 are driven from the main shaft 46 through spur-wheels 75 and wormwheels 76, mounted-on studs 76 and meshing with worms 77 on shafts 78. The latter shafts are driven by mitergears 79, one of which is on the driving-shaft 46. (8% Figs. 1 and 3.) The pinions 74 are prevented from having endwise or longitudinal movement by keepers 80, secured to the studs 76. The longitudinal movements of said pinions in the operation of drilling or tapping are obtainable through racks 81, secured to the under side of the sliding heads 32 and meshing with spur-gears 82, that are keyed to sleeves 83. These sleeves 83 are loose on shafts 84,

Which are supported in bearings 85 86, projecting from the base 1. Upon said sleeves 66 designates a pin passing through the 83 disks 87 are keyed. These disks have peripheral serrations. Keyed to the outer end of each of the shafts 84 is a disk '88, also having peripheral serrations to correspond with those on the disks 87. Surrounding said disks 87 and 88 is a ring 89, having enlarged portions 90, as shown in Fig. 9, to provide pockets 91 for the reception of blocks 92. Said blocks'have their inner surfaces serrated to engage with the serrations on disks 87 and 88. The blocks 92 are held in position by set-screws 93. (See Figs. 8 and 9.)

The shaft 84 has keyed to it a rocker-arm 94, which is connected to a double-ended rockerarm 96 by connecting-rod 95, secured to rockshaft 97. 98 is another rocker-arm on the opposite end of rock-shaft 97 and to the free end of which is linked the connecting-rod 31, which in turn is connected to the end of the bell-crank, as hereinbefore described. Rock-shaft 97 is journaled in a bracket 99 on the base 1. (See Figs. 2. and 6.) The functions of these connecting-rods 95 95 and 31 are to impart longitudinal motion to the spindles 69 in the operation of drilling or tapping. The said longitudinal motion is conveyed to said spindles through the cam 61, which raises and lowers levers 64, connecting-rod member 27, links 28 and 29, bell-crank arms 30 and 30 connection 31, rocker-arm 98, rock-shaft 97, double rocker-arm 96, connections 95, androcker-arm 94, the latter being fixed to the shaft 84. On the base 1 there are two sliding blocks 100, on which the casting 101 to be operated upon is placed. (See Fig. 1.) These blocks have ears 102, to which are pivoted C- clamps 103, which have stop-pins 104 and clamp-screws 105, by which the casting or work is secured in position to be operated upon. The blocks 100 move in the ways 71 in the base 1 when being adjusted to accommodate different widths of work. The upper end of the casting 101 is held in position by similar C-clamps 106, pivoted to the lower ends of the cross-heads 14 14 and operated to clamp the casting in a manner similar to the lower clamps hereinbefore referred to.

Having described the details of construction, I will now give a description of the operation of the machine.

The casting 101 is placed upon the blocks 100 and is secured by the clamps 105 and 106. The cross-rail 3 is then raised or lowered by the screws 4 4 to bring the spindles 8, 9, and 10 the proper distance relatively to the work. When the cross-rail 3 is a'dj usted to the proper position through screws 4 4, the spindles 8, 9, and 10 are adjusted vertically'in the crossheads 14, 14 and 14 by turning the handwheel 26, which lengthens or shortens the connecting-rod consisting of the members 24, 25, and 27. Spindles 8 and 10 are then adjusted laterally to bring them to the desired positions by the screws 11. The horizontal spindles 69 are adjusted longitudinally by means shown in detail in Figs. 8and 9. The ring 89 is loosened from the disks 87 and 88 by removingscrews 93 to permit the blocks 92 to be released from engagement with the serrations on said disks 87 and 88. As before stated, the disk 87 is keyed to the sleeve 83, which is loose on shaft 84, and the spurwheel 82 is also keyed to said sleeve. It therefore follows that by rotating the disk 87, which is done by inserting a spanner or rod in the openings 107, the spur-wheel 82 will receive like movement, and as said spurwheel is in mesh with the rack 81, secured to the under side of the sliding head 32, in which the spindle 69 is supported, the said sliding head will receive the necessary longitudinal movementin either direction,depending upon the width of the casting to be operated upon. The blocks 92 are then replaced and tightened up by the set-screws 93 and the ring 89 is replaced. the tools supported in the spindles to the work, the rotation of said shaft taking place through the rocker arm 94, which is keyed thereto and is operated by the lever 64, which receives its motion from the cam-disk 61, all as hereinbefore described. The vertical spindles are fed to their work by the racks 21,

the sectors 20 on rock-shaft 19, which shaft is rotated from arm 23, and the connectingrod consisting of the members 24, 25, and 27.

Shaft 84 is then rotated to feed The said connecting-rod is raised or lowered miter-gears 79, which operate shafts 78, gears 77, worm-wheels 76, spur-wheels 75, and spurpinions 74, which are splined to the spindles 69.

Having described my invention, I claim 1. In a multiple-drill press, the combination with a supporting-frame, of a cross-rail mounted upon said frame, means for adjusting-said cross-rail vertically, a series of crossheads mounted on said cross-rail, a tool-holding spindle mounted in each of said heads, the central one of said tool-holding spindles being stationary as to lateral adjustment, and the remainder of said tool-holding spindles being adjustable laterally upon the cross-rail, means for imparting such lateral adjustments, a rock-shaft arranged in the rear of said. tool holding spindles, gearing interposed between said tool-holding spindles and said rock-shaft, an adjustable connecting-rod imparting movement to said rockshaft, le-' ver and cam connections imparting vertical reciprocable movement to said adjustable connecting-rod,andmeansforsimultaneously rotating the tool-holding spindles, substantially as set forth.

&

2. In a multiple-drill press, the combination with a main supporting-fram e, of a crossrail mounted upon said frame, means for adjusting said cross-rail vertically, a series of cross-heads mounted upon said cross-rail, one of said cross-heads being stationary as to horizontal movement, and the remaining ones of said cross-heads being susceptible of horizontal adjustments, screw connections by means of which the last-named cross-heads receive their horizontal adjustments, a toolholding spindle mountedin each of said crossheads, a continuous rotatable shaft, and a rock-shaft mounted adjacent to said crossheads, gearing connecting the first-named shaft with the tool-holding spindles for imparting the rotary motion to said spindles, gearing connecting the rock-shaft with the said tool-holding spindles for imparting vertically-reciprocable movements to said spindles, an upright shaft geared to said continuous rotatable shaft, an adjustable connecting-rod connected to the rock-shaft, gearing interposed between said upright shaft and the main driving-shaft, a lever havinga sliding connection with said adjustable connecting-rod, and a cam actuating said lever to impart vertically-reciprocable movement to said adjustable connecting-rod, substantially as set forth.

3. In a multiple-drill press, the combination with a supporting-base, of a series of horizontal tool-holding spindles, sliding heads in which said tool-holding spindles are mounted, racks and pinions connected to said sliding heads, a sleeve to which each of said pinions is fixed, a rock-shaft passing loosely through said sleeve, a removable disk on said sleeve, a removable disk on the rock-shaft adjacent to the disk on the sleeve, both of said disks being of the same diameter and havingtheirperipheries serrated, a removable ring having its inner periphery serrated to engage with the serrations on said disks, the said ring when in position enabling the sleeve and the rock-shaft to move in unison in the operation of feeding the tool-holding spindles, and the said ring when detached from the disks enabling an adjustment of said toolholding spindles independent of the movement of the rock-shaft, substantially as set forth.

4. In a multiple-drill press, the combination with a supporting-base, of a series of horizontal tool-holding spindles, slidingheads in which said spindles are mounted, racks secured to said sliding heads, spur-gears in mesh with said racks, sleeves to which said spur-gears are fixed, a removable disk keyed to each of said sleeves, said disk having peripheral serrations, a rock shaft passing loosely through each of said sleeves, a removable disk splined to said rock-shaft, said disk having its periphery provided with serrations, a removable ring provided with interior serrations engaging the serrations on said disks, pockets formed in opposite sides of said ring, and blocks located within said pockets and having their inner faces serrated to engage with the peripheral serrations of the disks, substantially as set forth.

5. In a multiple-drill press, the combination with a supporting-base, of a series of horizontal tool holding spindles, slidable heads in which said tool-holding spindles are mounted,racks secured to said slidable heads, pinions in gear with said racks, sleeves to which said pinions are fixed, rock-shafts passin g loosely through said sleeves, a removable disk keyed to each of said sleeves, a removable disk splined to each of said rock-shafts adjacent to the disk keyed to said sleeve, both of said disks having their peripheries serrated, a removable ring having its inner periphery serrated to engage with the serrations on said disks, the said ring, when in position upon the disks, enabling the sleeves and the rock-shafts to move in unison in the operation of feeding the tool-holding spindles to their work, and the said ring when detached from said disks, enabling an adjustment of said tool-holding spindles independent of the movement of the rock-shafts, a rocker-arm fixed to each of said rock-shafts, a cam, and connections between said cam and said rocker-arm, whereby longitudinal working motion is imparted to the tool-holding spindles, substantially as set forth.

6. In a multiple-drill press, the combination with a base, of a series of horizontal tool-holding spindles, slidable heads supported on said base and supporting said tool-holding spindles, a rack on each of said sliding heads, a pinion in gear with each of said racks, a sleeve to which each of said pinions is keyed, a disk having peripheral serrations keyed to each of said sleeves, a rock-shaft upon which each of said sleeves is loosely mounted, a disk keyed to each of said rockshafts adjacent to the disk which is keyed to the sleeve, and which is provided with peripheral teeth, a ring having internal serrations engaging with the serrations of said disks, said ring having pockets in opposite sides thereof, serrated blocks in said pockets and adapted to engage with the serrations upon the disks, a rocker-arm connected to one of said shafts, a cam, and crank and lever connections between said cam and said rocker-arm, substantially as set forth.

7. In a multiple-drill press, a cross-rail, means for adjusting said cross-rail vertically to desired positions, a series of cross-heads mounted upon said cross-rail, a series of vertical tool-holding spindles mounted in said cross-heads, means for imparting lateral adjusting movements to some of the cross-heads to bring the tool-holding spindles in desired positions, a series of horizontal tool-holding spindles, sliding heads upon which said horizontal tool-holding spindles are mounted, a cam, and means interposed between said cam and the vertical and horizontal tool-holding spindles whereby simultaneous longitudinal movements are imparted to both series of tool-holding spindles, and means for imparting simultaneous rotary movements to each series of tool-holding spindles, substantially as set forth.

8. In a multiple-drill press, a cross-rail, means for adjusting said cross-rail vertically, a series of cross-heads mounted upon said cross-rail, the central one of said cross-heads being stationary, and the remaining ones of said crossheads being susceptible of lateral adjustment, means for imparting said lateral adjustment, a vertical tool-holding spindle supported in each of said cross-heads, two horizontal toolholding spindles, slidable blocks mounted on the base of the machine and in which the said horizontal spindles are mounted, a rock-shaft mounted crosswise below each of said slidable blocks, combinationgearing supported on each of said shafts by means of which the blocks supporting the said horizontal spindles may be adjusted to the proper working positions, and the proper horizontal working movement subsequently given said spindles, rod-and-lever connections between the rock-shafts supporting said combination-gearing, an adjustable upright connecting-rod, gear connections between said rod and the vertical spindles, link-andlever connections between said rod and the rod-and-lever connections of the horizontal spindles, a cam, and a lever, the latter being driven from said cam and having a loose connection with the adjustable upright connecting-rod, substantially as set forth.

9. In a multiple-drill press, a cross-rail, means for imparting vertical adjustment to said cross-rail, a series of cross-heads mounted upon said cross-rail, means for imparting horizontal adjustments to said cross-heads, a vertical tool-holdin g spindle mounted in each of said cross-heads, a rock-shaft mounted on the cross-rail, gearing interposed between said rock-shaft and the tool-holding spindles through which longitudinal working movements are imparted to saidspindles, a series of horizontal tool-holding spindles below the vertical spindles,slidable blocks upon which said horizontal spindles are mounted, actuating mechanism connected with said slidable blocks whereby the horizontal spindles are given the longitudinal working movement, rod and-lever connections between said slidable blocks, an adjustable connecting-rod through which motion is imparted simultaneously to the rock-shaft geared to the vertical spindles, and to the rod-and-lever connections of the horizontal spindles, a cam, a lever actuated by said cam to impart reciprocable movement to the adjustable connecting-rod, and separate means driven from a common driving-shaft and imparting simultaneous rotary movements to both sets of spindles, substantially as set forth.

10. In a multiple-drill press, two horizontal tool-holding spindles having longitudinal working movements in opposite directions, slidable heads in which said spindles are mounted, a rack and pinion geared to each of said slidable heads, a sleeve to which said pinion is fixed, a rock-shaft loosely supporting said sleeve, means for connecting or disconnecting at will, the rock-shaft and the sleeve whereby the said slidable heads may be first adjusted to their working positions and subsequently placed in a condition to enable the spindles to receive longitudinal working movements, rocker-arms connected to the rock-shaf ts, link-and-lever connections between said rocker-arms, and means for imparting movement to said connections, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

' FREDERICK J. NUTTING.

Witnesses:

R. J. MCCARTY, CAROLYN M. THEOBALD, 

